>> Lost Worlds: Life in the Balance. According to Hulu, this 40-minute film is “An exploratory documentary that takes viewers to some of the most astonishing of Earth’s places” to provide “A global exploration of the fascinating interconnectedness of all living things.”

>> Antartica. According to Hulu, “Filmmaker John Weiley explores the continent and its animals, as well as the scientists who work there” in this full-length movie.

>> Big Ideas for a Small Planet. One full episode — “Power” — is available from this Sundance Channel eco-show. “Power” looks at alternative energy sources projects and the people working on them.